Setting guide http://www.bi7jta.org
MUST KNOWN :
1, This model need manual work , 3～7 days send out shipping.
2, Not all country support battery shipping, I will feedback when your check out.
3, Not a standard product, just a DIY project ,not perfect.
MODEL: MMDVM_BAT (battery inside)
1, Press POWER button 1s to startup hotspot, wait 30s OLED screen show MMDVM status, when MMDVM service Initialization completed.
2,Press POWER button 5s to shundown hotspot.
3,Press POWER button 3s to reboot hotspot.
4,Double press POWER button to open the LED Flashlight lamp, double press to close
It takes about four hours to charge to 100%.（Ensure input charging 5V1.3A~2A)
It can supply power for about 20 hours.
Automatic shutdown hotspot during charging
User guide https://mmdvm.bi7jta.org/search/label/MMDVM_BAT
>> Host and HAT
Wi-Fi inner in Raspberry Pi Zero W, can use any WiFi hotspot,
Wi-Fi AP mode if not connect to any pre-setting Wi-Fi
Web dashbash visit use http://pi-star
Support Digital mode: DMR/YSF/P25/NXDN/DSTAR/POCSAG
Frequency range: VHF/UFH, frequency range: 144MHz-148MHz, 420MHz-475MHz,842MHz-950MHz (depend on ADF7021 and TCXO, HAT's Firmware Amateur radio brand license limit)
High-quality KDS 14.7456MHz TCXO(SIMPLEX hotspot inside), ECS 14.7456MHz TCXO(Duplex hotspot inside), stable with low BER.
NOTE: I have replace the battery status LED using MMDVM OLED screen, so you can not see the Percentage of remaining battery capacity (x%)
>> Battery system
Capacity 6000MA（2x3000MA), continue supply power about 20 hours for hotspot, tester show 5V0.1A
Low Voltage Automatic Protection
From 0% to full 100% spend time about 4 hours, tester show 5V1.3A
Automatic shutdown hotspot when in charging status
With OLED screen
1，1x MMDVM HAT contains「RainSun」Ceramic antenna
2，1x OLED 0.96 inch, show MMDVM QSO status
3，1x Raspberry Zero W, with Pure copper heat sinks
4，1x SanDisk or TOSHIBA TFCard 16G or 8G, Class10+, write speed not less than 10Mb, measured 12M~17M
5，1x high quality 5V2A charging ,MicroUSB interface
6，2x 3000ma ,18650 lithium batteries
7，2x Thermal conductive silica gel
8，8x inner link wire
9，1x Charging Model with 5V1A and 5V2A output
User's manual (English language)
With battery item just can use postal register (standard shipping), not support DHL or other express, so not sure the delivery time, I will tell you the experience the last time sent.
Click to view original image
Upgrade to MMDVM board with fan hole, the purpose is to get low BER with Ceramic antenna
Bluetooth Nextion screen 2.4 inch
Duplex hotspot inside(Not available from now)
Battery install sample if you DIY yourself.
Take care the + - poles ! ! First full turn off the
hotspot after pressing for 5 seconds, then soldering , otherwise it will
burn your equipment!
(Right click to open original image)
Portable SPOT MODEL: MMDVM_BAT (battery inside)
- Brands NANO-Wireless
- Product Code: MMDVM_BAT
- Availability: 2-3 Days